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No. 624,380. Patented May 9-, 1899. w. H. SILVER,

AuTomATic on. STOVE.

(Application filed J's-n. 16, 1899.)

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No. 624,880. Patented may 9, I899.

w. H. SILVER.

AUTOMATIC OIL STOVE.

(Application filed Jan. 16,.1899.)

(No Model.) 2 Sheets-Sham 2.

WITNESSES. M/VE/VTOH ATTORNEY,

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NITED STATES PATENT OFFICE.

WILLIAM H. SILVER, OF NEWV YORK, N. Y., ASSIGNOR TO THE SILVER &

COMPANY, OF SAME PLACE.

AUTOMATIC OIL-STOVE.

SPECIFICATION forming part of Letters Patent No. 624,880, dated May 9, 1899.

Application filed January 16, 1899. Serial No. 702,228a (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM H. SILVER, a citizen of the United States of America, and aresident of the borough of Brooklyn, in the city and State of New York, have invented a new and useful Improvement in Automatic Oil-Stoves, of which the following is a specification.

This invention relates to automatic or selfregulating oil-stoves in which the oil is automatically fed to the burner with the requisite regularity, including provision for flooding the burner to facilitate lighting it and for draining the burner to extinguish the flame. Early examples of these stoves are set forth in United States Letters Patent No. 421,826, granted February 18, 1890, for Caleb V. Fleetwoods Automatic feeding device for petinguish the flame and to vary its heat and intensity at will; to render the burner movable in an arc of a circle on a horizontal pivot at a distance from the burner and behind the same, whereby such movement is rendered nearly vertical; to provide for indicating and readily observing such movement at the burner; to render level or substantially level in its working position a burner movable in the arc of a circle, so as to insure a uniform distribution of oil to all parts of an annular burner or its equivalent; to provide against any obstruction of the feed-passages by water that may drip intowickless burners in such stoves; to retard for the instant the flow of oil into the burner when the tank andburner are tilted, and to provide a highlyeffective mechanical device for moving the tank and burner or either of them relatively to the maintained oil-level of the oil-tank in lighting and extinguishing the flame or varying its heat and intensity, as aforesaid.

Two sheets of drawings accompany this specification as part thereof.

Figure 1 of the drawings is a small-scale diagrammatic side view of an improved stove, illustratingits operation. Fig. 2 represents a vertical cross-section through the oil-tank. Fig. 3 represents a fragmentary section extending through the burner in a central longitudinal plane. Fig. 4 is an elevation of parts on the burner end of this stove, and

Fig. 5 is a detail section through the valve of the oil-tank.

Like letters and numbers refer to like parts in all the figures. I

The improved stove comprises a suitable frame, a fragment of which is shown at A in Fig. 1, supporting by arms 1 and 2, Figs. 1 and 2, a transverse horizontal pivot B, which is thus fixedly located. The pivot is preferably tubular and provided at its ends with screw-nuts 3, Fig. 2, by which it is fastened in place; but these details are not considered material. Said pivot is embraced or, it may be, partially embraced by a foot-piece 4 at the lower end of the tubular stem 5 of an oil-supply tank 0 of-the student-lamp type. Such tank comprises, as is customary, a removable inner tank or fount 6, having a spring-closed valve '7, carried by a screw-cap 8 and provided with a protruding stem 9, which when the fount is in place keeps the valve open,as in the drawings. A burner D at the other end of the stove is preferably annular, as shown, and of the wickless variety, having an oil-cup 10, Fig. 3, within which a "start ing-ring 11, of asbestos, provides for heating the cup and igniting the oil. Rigid pipe connections E between said tank and said burner connect with said tubular stem 5 of the tank and the central neck 12 of the burner and comprise a water-trap 13, which is depressed with reference to the oil-level and serves to receive and to hold any water that may get into the burner, so as-to keep the same from plugging or obstructing the oil-passages. The depressed portion of the pipe connections serves also to retard the flow of oil from the tank 0 to the burner B when these parts are quickly tilted. Said connections E further comprise a nose-piece 14, the nose a of which projects through a vertical slot in a vertical face-plate or dial-plate F, Fig. 4, fixedly attached to the frameA at the burner end of the stove, and is engaged by an indexpiece or pointer 16 of L shape in side View, the upright portion of which has a hole loosely fitted to said nose n. The horizontal portion of said index-piece is attached to the upper end ofa non-rotary screw 17, which works in vertical guides 18, 19, and 20 on the face of the dial-plate F, and between said guides 19 and 20, as fixed supports, a wheel-nut 21 turns on the screw 17 and moves the latter, and therewith the index-piece 16, nose-piece 14, connections E, burner D, and tank 0, to effect the tilting of the latter parts relative to the oil-level 0, as represented by dotted lines t in Fig. 1. A stop 22 limits the downward movement of the screw 17 to prevent strain on the joint between its upper end and the index-piece 16.

In addition to the substitution of an open or U-shaped foot-piece at 4 in place of the sleeve form represented in the drawings any approved make of burner may be used in the improved stove, and other like modifica tions will suggest themselves to those skilled in the art.

By the location of the pivot beneath the tank and at a distancebehind the burner, as shown and described, the motion of the burner in the arc of a circle is rendered nearly vertical and suflicient in scope to facilitate indicating and observing the movement at the tilting device, as in Fig. 4, the tilting andindicating devices being conveniently located at the burner end of the tilting structure and beneath the burner.

By soconstructingand attaching the burner that its oil-cup is level or substantially level, as shown in its normal or working position, the equal distribution of the oil within the oil-cup, is insured at the time when this is important, which is when the oil-cup contains the least quantity of oil required to supply the flame. Its inclination when depressed to flood the burner and when elevated to extinguish the flame is quite immaterial.

The rigid connectionsE serve not only for conducting the oil from the tank 0 to the burner D and supporting the latter, but also for conveying motion from the tilting device tothe tank, and in the form shown serve at the same time as an effective water-trap and flow-retarding device, as above described.

The tilting and indicating devices as a whole are conveniently carried by thedialplate F, and owing to their loose and indirect connection with the burner are protected against excessive heat. Their distinctive con, struction and operation as above described provide for quickly effecting the required movements and for automatically holding the moving parts steady in whatever position they may be left in by the operator, and also, in connection with the alternative open or U-shaped foot-piece at 4, for rendering the tilting structure as a whole readily removable at will for any purpose.

Having thus described said improvement,

7 I claim as my invention and desire to patent under this specification:

1. A stove comprising a fixedly located transverse horizontal pivot as a center of movement, an oil-supply tank of the studentlamp type having its maintained oillevel at an automatically-regulated distance above said pivot, an annular burnerfed by said tank, rigid connections between said tank and burner, and means for tilting said tankburner and connections upon said pivot to raise or lower the burner relative to said oillevel.

2. In an oil-stove, the combination of a tank of the student-lamp type and a burner fed by said tank, united in a rigid structure, a horizontal pivot beneath the tank on which said structure can be tilted to raise or lower the burner, in the arc of a circle, with, a nearlyvertical movement, and means for tilting the same located at the burner end of the structure.

3. In an oil-stove, the combination of a tank of the student-lamp type anda burner fed by said tank, united in arigid structure, a horizontal pivot beneath the tank on which said structure can be tilted to raise or lower the burner, in the arc of a circle, with a nearlyvertical movement, and means for indicating such movement located at the burner end of the structure.

4. In an oil-stove, thecombination with a tank of the student-lamp typeof a burner fed by said tank and movable on a horizontal pivot distant from the burner and behind the same, whereby such movement is rendered nearly vertical.

5. In an oil-stove, the combination with a tank of the student-lamp. type of a burner fed by said tank, movable up and down in the arc of a circle, and having an oil-cup which contains the greatest quantity of oil in an inclined position below its normal plane and contains the least quantity of oil required to supply' the flame in a substantially horizontal or level position.

6. In an oil-stove, the combination with a burner and connections of av tank of the student-lamp type, a foot-piece and a nose-piece united with said tank in a rigid structure, a horizontalpivot coacting with said foot-piece, and means for tilting said. structure coacting with said nose-piece.

7. In an oil-stove, the combination with a burner and connections of a tank of the student-lamp type having a vertical stem at bot tom terminating in a foot-piece, a horizontal pivot, coacting with said foot-piece, a rigid connection extending from said stem between said foot-piece and the bottomv of the tank, a

nose-piece at the other extremity of said connection, and a tilting device coacting with said nose-piece.

8. In an oil-stove, the combination of a tank of the student-lamp type and a burner fed by said tank, united in a rigid structure, comprising a nose-piece at the burner end, a horizontal pivot on which said structure can be tilted to raise or lower the burner, and a tilting device coacting with said nose-piece.

9. In an oil-stove, the combination of a tank of the student-lamp type having a vertical stem at bottom terminating in a foot-piece and a burner fed by said tank, united in a rigid structure, a horizontal pivot coacting with said foot-piece, and means for tilting said structure on said pivot to raise or lower the burner.

10. In an oil-stove, the combination with a tank of the student-lamp type having a pi v-,

11. The combination, in an oil-stove, of an oil-supply tank having a maintained oil-level, a burner fed by said tank, a non rotary adjusting-screw, a wheel-nut upon said screw, apair of fixed supports between which the nut works, an index-piece orpointer to which said screw is attached, and a dial'plate behind said pointer.

12. The combination,-in anautomatic oilstove, of anoil-supply tank a burner and connections having a tilting movement and provided with a' nose-piece, an index-piece or pointer applied to said nose-piece, and anadjusting-screw attached to said index-piece.

13. The combination, in an automatic oilstove, of an oil supply tank a burner and con nections having a pivotal movement and comprising a nose-piece, an index-piece applied to said nose-piece, a non-rotary adjusting-screw attached to said index-piece, a wheel-nut engagedwith said screw, and vertical guides for said screw including a pair of fixed supports between which said wheel-nut works.

WM. H. SILVER. Witnesses:

JAs. L. EWIN, ARTHUR C. Fo'wLn. 

